7+2+8+x=

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Solution for 7+2+8+x= equation: 


Simplifying
7 + 2 + 8 + x = 0

Combine like terms: 7 + 2 = 9
9 + 8 + x = 0

Combine like terms: 9 + 8 = 17
17 + x = 0

Solving
17 + x = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-17' to each side of the equation.
17 + -17 + x = 0 + -17

Combine like terms: 17 + -17 = 0
0 + x = 0 + -17
x = 0 + -17

Combine like terms: 0 + -17 = -17
x = -17

Simplifying
x = -17

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